CoolCrab's User Profile - Atlas Obscura
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Amsterdam, Netherlands

Tiny Hidden Houses on Westerstraat

permanently closed
Seven mini rowhouses fill the gap between 54 and 70 Westerstraat.
Stockholm, Sweden

Johanneshovs Skans (Johanneshov Sconce)

Part of an abandoned19th-century fortress hides in plain sight inside a modern office building.
Brussels, Belgium

Black Tower

A fantastical 13th-century fortification sandwiched by a modern hotel in central Brussels.
Sweden

Lummelunda Cave

This fantastic cave remained unexplored until 1948 when three schoolboys discovered a hidden entrance.
Stockholm, Sweden

Kungsträdgården Metro Station

Stockholm's deepest subway station is also a stunning ecological wonder.
Bruges, Belgium

Smedenpoort Skull

The bronzed skull of a beheaded traitor was affixed to the city gate in the 17th century.
Warsaw, Poland

Czar PRL: Life Under Communism Museum

This hidden collection of everyday objects illustrates life within communist Poland.
Rotterdam, Netherlands

Maastunnel

The Netherlands' first car tunnel has an unusually rectangular shape.
Munich, Germany

Wurmeck

A fearsome dragon clings to a corner of Munich's city hall.
Mountain View, California

The Real Birthplace of Silicon Valley-The Shockley Semiconductor Laboratory

The first high-tech company in the valley that actually worked with silicon devices.
Antwerp, Belgium

St. Anna's Tunnel

Rare wooden escalators lead deep down into an otherwise staggeringly monotonous tiled tunnel.
Cologny, Switzerland

Villa Diodati

Where Mary Shelley’s 'Frankenstein' and John William Polidori's 'The Vampyre' were born.
Geneva, Switzerland

La Tulipe

A rare, flower-shaped example of Brutalist architecture in Switzerland.
Helsinki, Finland

Fortress of Suomenlinna

This irregularly shaped sea fortress has defended not one but three different sovereign states.
Meyrin, Switzerland

Nataraj Statue (The CERN Shiva)

This statue of a Hindu cosmic dancer at CERN is a metaphor for modern physics.
Meyrin, Switzerland

Birthplace of the Web

The World Wide Web was created in this nondescript corridor at CERN.
Göttingen, Germany

Wiechert Earthquake Station

Home to the world’s oldest seismograph and a four-ton steel ball that makes its own earthquakes.
Rotterdam, Netherlands

Blaak House

Elegant marble and old vaults fill this historic Dutch bank turned office space.
Garching bei München, Germany

Parabolic Slides

Four-story slides send people whizzing through the math department at this Munich university.
Amsterdam, Netherlands

Six Collection

A rare tour of an aristocrat's private home reveals valuable 17th-century paintings from artists like Rembrandt.
Leuven, Belgium

Fons Sapientiae

This whimsical statue dumps water on its head to symbolize knowledge flowing into his brain. Or maybe booze.
Campamento Geotermico Corfo, Chile

El Tatio Geysers

The largest geyser field in the southern hemisphere is a spectacular sight.
San Francisco, California

Encryption Lava Lamps

The randomness of this wall of lava lamps helps encrypt up to 10 percent of the internet.
Amsterdam, Netherlands

City Hall Urinal

A public urinal so pretty, it was declared a national monument.